perf tool: Constify tool pointers

The tool pointer (to a struct largely of function pointers) is passed
around but is unchanged except at initialization. Change parameter and
variable types to be const to lower the possibilities of what could
happen with a tool.

Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240812204720.631678-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 17 insertions, 17 deletions

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index f32f9abf6344..c2f0e7f40ad5 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -216,7 +216,7 @@ size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
 		       event->cgroup.id, event->cgroup.path);
 }
 
-int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
+int perf_event__process_comm(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
 			     struct machine *machine)
@@ -224,7 +224,7 @@ int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
 	return machine__process_comm_event(machine, event, sample);
 }
 
-int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
+int perf_event__process_namespaces(const struct perf_tool *tool __maybe_unused,
 				   union perf_event *event,
 				   struct perf_sample *sample,
 				   struct machine *machine)
@@ -232,7 +232,7 @@ int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
 	return machine__process_namespaces_event(machine, event, sample);
 }
 
-int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused,
+int perf_event__process_cgroup(const struct perf_tool *tool __maybe_unused,
 			       union perf_event *event,
 			       struct perf_sample *sample,
 			       struct machine *machine)
@@ -240,7 +240,7 @@ int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused,
 	return machine__process_cgroup_event(machine, event, sample);
 }
 
-int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
+int perf_event__process_lost(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
 			     struct machine *machine)
@@ -248,7 +248,7 @@ int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
 	return machine__process_lost_event(machine, event, sample);
 }
 
-int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
+int perf_event__process_aux(const struct perf_tool *tool __maybe_unused,
 			    union perf_event *event,
 			    struct perf_sample *sample __maybe_unused,
 			    struct machine *machine)
@@ -256,7 +256,7 @@ int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
 	return machine__process_aux_event(machine, event);
 }
 
-int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
+int perf_event__process_itrace_start(const struct perf_tool *tool __maybe_unused,
 				     union perf_event *event,
 				     struct perf_sample *sample __maybe_unused,
 				     struct machine *machine)
@@ -264,7 +264,7 @@ int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
 	return machine__process_itrace_start_event(machine, event);
 }
 
-int perf_event__process_aux_output_hw_id(struct perf_tool *tool __maybe_unused,
+int perf_event__process_aux_output_hw_id(const struct perf_tool *tool __maybe_unused,
 					 union perf_event *event,
 					 struct perf_sample *sample __maybe_unused,
 					 struct machine *machine)
@@ -272,7 +272,7 @@ int perf_event__process_aux_output_hw_id(struct perf_tool *tool __maybe_unused,
 	return machine__process_aux_output_hw_id_event(machine, event);
 }
 
-int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
+int perf_event__process_lost_samples(const struct perf_tool *tool __maybe_unused,
 				     union perf_event *event,
 				     struct perf_sample *sample,
 				     struct machine *machine)
@@ -280,7 +280,7 @@ int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
 	return machine__process_lost_samples_event(machine, event, sample);
 }
 
-int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
+int perf_event__process_switch(const struct perf_tool *tool __maybe_unused,
 			       union perf_event *event,
 			       struct perf_sample *sample __maybe_unused,
 			       struct machine *machine)
@@ -288,7 +288,7 @@ int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
 	return machine__process_switch_event(machine, event);
 }
 
-int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
+int perf_event__process_ksymbol(const struct perf_tool *tool __maybe_unused,
 				union perf_event *event,
 				struct perf_sample *sample __maybe_unused,
 				struct machine *machine)
@@ -296,7 +296,7 @@ int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
 	return machine__process_ksymbol(machine, event, sample);
 }
 
-int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
+int perf_event__process_bpf(const struct perf_tool *tool __maybe_unused,
 			    union perf_event *event,
 			    struct perf_sample *sample,
 			    struct machine *machine)
@@ -304,7 +304,7 @@ int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
 	return machine__process_bpf(machine, event, sample);
 }
 
-int perf_event__process_text_poke(struct perf_tool *tool __maybe_unused,
+int perf_event__process_text_poke(const struct perf_tool *tool __maybe_unused,
 				  union perf_event *event,
 				  struct perf_sample *sample,
 				  struct machine *machine)
@@ -387,7 +387,7 @@ size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
 	return ret;
 }
 
-int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
+int perf_event__process_mmap(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
 			     struct machine *machine)
@@ -395,7 +395,7 @@ int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
 	return machine__process_mmap_event(machine, event, sample);
 }
 
-int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
+int perf_event__process_mmap2(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
 			     struct machine *machine)
@@ -410,7 +410,7 @@ size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
 		       event->fork.ppid, event->fork.ptid);
 }
 
-int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
+int perf_event__process_fork(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
 			     struct machine *machine)
@@ -418,7 +418,7 @@ int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
 	return machine__process_fork_event(machine, event, sample);
 }
 
-int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
+int perf_event__process_exit(const struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
 			     struct perf_sample *sample,
 			     struct machine *machine)
@@ -587,7 +587,7 @@ size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FIL
 	return ret;
 }
 
-int perf_event__process(struct perf_tool *tool __maybe_unused,
+int perf_event__process(const struct perf_tool *tool __maybe_unused,
 			union perf_event *event,
 			struct perf_sample *sample,
 			struct machine *machine)